title: Direct speciation of phosphorus in alum-amended poultry litter: solid-state 31P NMR investigation.
mesh_terms: D000534:Alum Compounds / Q000737:chemistry*; D000818:Animals; D001682:Biological Availability; D005068:Eutrophication; D009682:Magnetic Resonance Spectroscopy; D008372:Manure; D010758:Phosphorus / Q000032:analysis / Q000737:chemistry*; D010759:Phosphorus Isotopes / Q000032:analysis; D011200:Poultry; D012989:Soil Pollutants / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014876:Water Pollution / Q000517:prevention & control
chemical_list: D000534:Alum Compounds; D008372:Manure; D010759:Phosphorus Isotopes; D012989:Soil Pollutants; D014873:Water Pollutants; D010758:Phosphorus; C041524:aluminum sulfate